AUSTIN — The plaintiffs in the ongoing Texas lawsuit over the state's congressional districts filed a motion late Thursday asking a federal court to block the use of the state's current congressional maps for the 2018 midterm elections.

Earlier this month, a three-judge federal district court in San Antonio ruled that the congressional map drawn by state leaders in 2011 discriminated against black and Latino voters and invalidated three of Texas' congressional districts. But the panel didn't require that the issue be corrected by a certain date.

In its 2-1 ruling two weeks ago, the district court found fault with Congressional District 35, held by Rep. Lloyd Doggett, a Democrat; Congressional District 23, held by Rep. Will Hurd, a Republican; and Congressional District 27, held by Rep. Blake Farenthold, a Republican.

The plaintiffs' motion calls for the court to block the use of the state's current congressional maps, which were drawn as an interim fix in 2013, in next year's elections because many of the violations found in the 2011 maps persist. The motion also calls for the "development and implementation" of a plan for drawing a new congressional map.

The NAACP, the Mexican American Legislative Caucus, the Texas Latino Redistricting Task Force, LULAC and several black and Hispanic members of Congress are among the plaintiffs in the case.

"Delaying entry of an injunction following the Court's finding that the 2011 congressional plan was illegal and unconstitutional and that elements of these violations persist ... would unjustifiably risk forcing Plaintiffs, and indeed, millions of Texans, to elect members of Congress under a legally invalid plan," the motion reads.

Attorney General Ken Paxton could not be reached for comment Thursday. But the plaintiffs' motion said they conferred with the defendants, who opposed the call for an injunction.

In their motion, the plaintiffs ask the court to provide a timeline for the state to address the violations of the Voting Rights Act and the Fourth Amendment in its maps by next year's congressional elections.

The motion gives the state Legislature a May 5 deadline to provide a new congressional district map that would fix the discriminatory violations the district court found. Plaintiffs would submit their proposal for a map a week later and would aim to have a new one in place by July — enough time for Texas counties to realign their voting precinct boundaries before filing for the 2018 elections.

The timeline, the motion says, would give the Legislature — which is set to adjourn May 29 — enough time to draft a new map and the court enough time to ensure the proposal fixes the discriminatory issues.